0.0%
$100.00
Fibonacci Calculator
Calculate Fibonacci retracement and extension levels for a price swing.
61.8% Retracement
$69.10
23.6%
$88.20
38.2%
$80.90
50.0%
$75.00
61.8%
$69.10
78.6%
$60.70
100.0%
$50.00
How to use the Fibonacci Calculator
The Fibonacci Calculator is free and runs entirely in your browser — no sign-up, and nothing you enter leaves your device. It opens pre-filled with a realistic example, so you can see how it works before replacing any figure with your own; the results update as you type. Press Calculate to refresh the result panel, or Reset to return to the example.
The inputs it asks for:
- Swing High — a dollar amount.
- Swing Low — a dollar amount.
- Trend Direction — choose one — Uptrend (retracement down), Downtrend (retracement up).
Worked example
Using the example values — Swing High $100.00, Swing Low $50.00, Trend Direction Uptrend (retracement down) — the Fibonacci Calculator returns a 61.8% Retracement of $69.10. It also reports 0.0% ($100.00), 23.6% ($88.20), 38.2% ($80.90).
Prefer your own numbers? Change any field above and this recomputes instantly.